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Old 7th January 2005, 11:05 PM   #1
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Default I am sleepy again

as continuation of my previous post:sleepy man's question

my question is:
if problem with stability is coused by phase shitf in RF and we use some RC filters for freqeuncy compensation, which also adds phase shift- why not use something like 2nd or 3rd order Bessel LC filter within FBL??

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Old 7th January 2005, 11:11 PM   #2
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You can have any order frequency compensation you want. Second order is not that uncommon. The problem is that to make it stable you need to do more complex calculations than for simple first order, or do a lot of fiddling to find an empirical solution.
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Old 10th January 2005, 09:22 PM   #3
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but bessel filter gives maximum attenuation at minimum phase shift , am I right?
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sleepy man's question darkfenriz Solid State 5 13th December 2004 09:28 AM


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